Disgusted by pnp wynberg service level

Wanted coffee at store ,shelf was like empty on one side with last two of nescafe gold packets with price below 200gr R76.99. Normally buying it round about that price on special thought to myself y not take it, it's a good price.At tillpoint just to find out the price is R99.99.Cashier simply just left went to her supervisor without saying anything.....onlything Manager had to say is that he'll deal with the person who did not put up the right price.